Rotor for cutting foodstuffs intended for a food processor and corresponding appliance

Abstract

A rotor ( 11 ) for cutting foodstuffs, intended for a food processor, includes: a rotary drive hub ( 14 ) and at least one blade ( 16 a, 16 b ) attached to the hub ( 14 ) and extending radially from the latter. The blade ( 16 a, 16 b ) has a first portion ( 20 a, 20 b ) with a highly-sharpened leading edge for cutting the foodstuffs and at the end of which is provided a second portion ( 22 a, 22 b ) with a non-sharpened leading edge for striking the foodstuffs so as to promote their bursting.

The invention claimed is: 
     
       1. A rotor for cutting foodstuffs, intended for a food processor, comprising:
 a rotary drive hub, and 
 at least one blade attached to the hub and extending radially from the latter, wherein the blade has a first portion with a sharpened leading edge for cutting the foodstuffs and a second portion located at the free end of the blade with a non-sharpened leading edge having a frontal surface that lies at least partially within a common plane of rotation with the sharpened leading edge for striking the foodstuffs so as to promote their bursting. 
 
     
     
       2. The rotor according to  claim 1 , wherein the leading edge of the first portion of the blade bulges in the direction of rotation of the rotor. 
     
     
       3. The rotor according to  claim 2 , wherein the leading edge of the second portion of the blade has a flat surface. 
     
     
       4. The rotor according to  claim 1 , wherein the frontal surface of the second portion of the blade comprises a surface that is substantially orthogonal to the direction of the velocity vector of the second portion when the rotor is rotating. 
     
     
       5. The rotor according to  claim 4 , wherein the frontal surface of the second portion of the blade is concave in the direction of rotation of the rotor. 
     
     
       6. The rotor according to  claim 1 , wherein the leading edge of the second portion of the blade has a flat surface. 
     
     
       7. The rotor according to  claim 1 , comprising at least two blades attached on either side of the axis of rotation of the rotor. 
     
     
       8. The rotor according to  claim 7 , wherein said at least two blades are attached and configured symmetrically on either side of the hub. 
     
     
       9. The rotor according to  claim 7 , wherein the hub is overmolded on corresponding inner ends of the blades. 
     
     
       10. A food processor comprising a food receptacle, and a rotor according to  claim 1  rotatably mounted within said receptacle. 
     
     
       11. A food processor comprising a food receptacle, and a rotor according to  claim 3  rotatably mounted within said receptacle. 
     
     
       12. The food processor according to  claim 11 , comprising at least two blades attached on either side of the axis of rotation of the rotor. 
     
     
       13. The food processor according to  claim 12 , wherein said at least two blades are attached and configured symmetrically on either side of the hub.